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D2726/D2726M Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Asphalt Mixtures. D3203/D3203M Test Method for Percent Air Voids in Compacted Asphalt Mixtures. D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials. D4753 Guide for Evaluating, ...
The differences between the core density values obtained by the three laboratories and the nuclear gauge readings were significantly higher than the 0.1% MTD (maximum theoretical density) reported accuracy currently us ed ... The nature of this project involved a large number of people from both the asphalt industry as well as the Connecticut ...
Asphalt core cutting test carried out to confirm the quality of the works like the density of the asphalt, the thickness of the layer, air permeability, asphalt compression strength, asphalt …
Concrete, Asphalt weighs 2.243 gram per cubic centimeter or 2 243 kilogram per cubic meter, i.e. density of concrete, Asphalt is equal to 2 243 kg/m³. In Imperial or US customary measurement system, the density is equal to 140.0259 pound per cubic foot [lb/ft³], or 1.2965 ounce per cubic inch [oz/inch³] . Density of Concrete, Asphalt in a ...
two lift core, the only acceptable means of separating lifts is with a power or other acceptable wet saw type of equipment (conforming to ASTM D 5361-05); however, at no time shall cores be split using a mallet and screwdriver or metal straight edge when being tested for bulk density.
In Place Density Determination of Asphalt Concrete by the Coring Method 1. Scope: This procedure is for determining the density of in place asphalt concrete pavement. 2. Apparatus: 2.1 Scale or balance having the capacity to weigh any sample which may be tested utilizing this procedure and readable to the nearest 0.1 gram. The
To further validate the performance of the ISO model for estimating the density and moisture content of in-situ asphalt pavement, a total number of five field cores were extracted from the lower asphalt layer of an 1-km-long composite pavement, as illustrated in Fig. 18. This composite pavement consists of the upper layer of 40-mm-thick AC-13 ...
5. Determine the density of the cores by the FOP for AASHTO T 166, Bulk Specific Gravity of Compacted Bituminous Mixtures Using Saturated Surface Dry Specimens. 6. Calculate a correlation factor for the gauge reading as follows: a. Calculate the difference between the core density and the average gauge density at each test site to the nearest 0 ...
Average Core Density 93.5% Acceptance Cores 95.6, 91.7, 93.2 Average 93.5%. Regression Analysis. Density Profiles ADJACENT TO CENTERLINE JOINT. ... • Reduced need for corrective action due to low-density asphalt pavements. • Reduced construction time; fewer incidents of replacing new pavement. • Lessen exposure of workers and public to ...
density after traffic with air voids and density of recompacted samples. The two cores were then extracted to determine the asphalt content (ASTM D2172). The remaining 6-in. cores were reheated, broken up, and recompacted using two compactive efforts: 75 blows per side with the manual Marshall hammer (standard compactive ef
comparing bulk density to theoretical maximum density(TMD) and the final in-place air voids are estimated by comparing bulk density of laboratory compacted sampler to the TMD. The two methods that have been used to measure bulk density of asphalt mixture are physical measurements of cores and nuclear gage. The nuclear gage
Density of Asphalt Concrete by the Nuclear Gauge Method 1. Scope: This test is for determining the in place density of asphalt concrete by using the nuclear gauge. A correction needs to be applied to the nuclear gauge to obtain an accurate in place density. A gauge reading will be taken at the cutout or core …
The job mix formula (JMF) was a SuperPave, KY Class 2 asphalt surface that is commonly placed on non-primary routes and is intended for traffic up to 3 million ESALs. The design was optimized at 5.4 percent asphalt binder for 96 percent (4 percent air voids) design density at 75 gyrations with a …
bulk density, asphalt extraction, aggregate gradation and specific gravity tests were conducted on pavement cores and marshall specimens as were plastic flow determinations made on the marshall specimens. it was concluded from an analysis of the data as to pavement density variability that: (1) density does not vary significantly in the ...
ATT-6/95 DENSITY, Immersion Method Waxed Asphalt Concrete Specimens 1.0 SCOPE This method describes the procedure for waxing and determining the dry density of asphalt concrete cores and field formed Marshall specimens. 2..0 EQUIPMENT wax double dish wax pot potable water equipment for ATT-7, DENSITY, Immersion Method, Saturated Surface Dry
ROADWAY DENSITY Description This work consists of the requirements for acceptance of asphalt roadway density by use of core samples, and for testing and acceptance of asphalt longitudinal joint density. Meet all requirements of 407 of the Standard Specifications except as modified. 407.03.D.2.h - Contractor Quality Control System.
A problem with density is the method of measurement. The two primary methods that have been used include measure ment of bulk density of cores taken from the in-place pave ment, and use of a nuclear gauge to measure the in-place density. The nuclear gauge method is not considered as accu rate as measuring the density of cores.
For the asphalt mixtures without slags, the average density prediction errors of GPR were between 0.5% and 1.1% with two calibration cores, while those of …
asphalt (HMA) using three methods – A, B, and C – in accordance with AASHTO T 166-12. ... Cores can be tested the same day as obtained by this method. ASPHALT WAQTC / IDAHO AASHTO T 166 (12) T166_short_12.docx Asphalt 16-6 Pub. October 2012 Procedure - Method C (Rapid Test for Method A or B) 1. Determine which method to perform, A or B ...
Density of bitumen. Density of bitumen is between 1.01 to 1.06 (Kg/dm3) It means that 1.010kg to 1.060kg is one desi cubic meter. Each tons of asphalt needed 70Kg Bitumen and the rest is aggregates. To get data sheet of bitumen 60/70 and more details on packing and delivery,please visit⇒ bitumen …
An asphalt core, randomly extracted from a field project, was chosen for modeling. The specimen was roughly cylindrical in shape, with a 10 cm diameter and a height of approximately 5.5 cm (i.e., lift thickness). It was part of a relatively porous surface (friction) course, composed of both basalt and limestone aggregates.
each core to identify the corresponding test location as shown on Form TL-3112. Cores that are damaged during the coring operations must be discarded and replaced by additional cores from the same test site. Determine the density of each core in accordance with California Test 308, Method A. Determine the average core density for each test site.
Hot Mix Asphalt Concrete Density, Bulk Specific Gravity, and Permeability . Yu Yan . ... and corresponding air voids of field cores. Based on density data from the I-79 project, provided by the contractor and WVDOH, the thin-lift gauge had smaller correction factors than standard nuclear gauges. Developing correction
HiCAMS Review Density Asphalt Cores QC 7-3 - 5 Review Density Asphalt QC Cores (Results Tab Navigation) This is the window used for entering QC Asphalt Core test results: Fields • Include In Avg.: To include this core test in the average % compaction for the lot, check. Otherwise, click to leave blank. • Core: The number of the core tested.
Field density measurements from standard and thin lift nuclear gauges were compared to cores from the same location. The need to develop calibration factors for the nuclear gauges using cores was demonstrated. Laboratory densities were measured using the conventional SSD method (AASHTO T 166) and the CoreLok method (AASHTO T 331).
The density of asphalt mixture; Summary How to calculate the weight of asphalt. In calculating the weight of asphalt, necessary is the volume and specific gravity. It can be derived by calculating the volume from the construction area and thickness of the asphalt pavement and multiplying the specific gravity of the asphalt used for pavement.
o For 60 Series, additional cores are required every 3 days of paving to verify density. Cores taken that do not meet density requirements will be subject to disincentive. o For 70 Series, the Engineer may request cores to verify project target density (PTD), if necessary. This will ensure a reasonable density …
Answer (1 of 3): 2400kg per cubic metre is a good generic density. Sorry if you use the imperical system, I'm sure you can convert it easy enough. In real life though, it's a good idea to calibrate this figure based on tonnage used, average depth and coverage, especially if you are recieving mate...
These two tests cover the process of getting the bulk specific gravity, density, and thickness of compacted asphalt core sections. The results of these tests will be used to find the unit weight of each compacted asphalt mixture, and can also be used with ASTM D3203 to determine the percent of air voids in an asphalt core.
Using a digital density meter. The standard test method (ASTM D8188) requires a digital density meter to measure the asphalt/bitumen samples. A density meter requires less sample volume (around 3 mL to 4 mL, which is about half the amount needed by pycnometers). The density meter used ideally must have a way to keep the syringe at a temperature ...
measurement of the asphalt density but has drawbacks of increased time and cost needed from core extraction to the end of testing is time-consuming and costly. The NDG is a quick and non-destructive alternative solution, but has practical limitations and health …
maximum density (TMD) and the final in-place air voids are estimated by comparing bulk density of laboratory compacted sampler to the TMD. The two methods that have been used to measure bulk density of asphalt mixture are physical measurements of cores and nuclear gage. The nuclear gage is fast and non-destructive but is not
3. Determine the density of the cores by the FOP for AASHTO T 166, Bulk Specific Gravity of Compacted Asphalt Mixtures Using Saturated Surface Dry Specimens. 4. Calculate a correlation factor for the nuclear gauge reading as follows: a. Calculate the difference between the core density and the average nuclear gauge
Randomly select core locations for every 250 tons of hot mix asphalt placed according to Part 3, Section 3B, "Test Site Location," of California Test 375, "Determining the In-Place Density and Relative Compaction of Hot Mix Asphalt Pavement Using Nuclear Gages."
These procedures are used for sampling asphalt mixtures from the roadway prior to compaction, taking cores from the roadway to determine density, and to determine the locations for securing core samples for testing. The mixtures and core samples obtained from this procedure will be
Note paragraph 3.1 from the standard reads: 3.1 Samples obtained in accordance with the procedure given in this practice may be used to measure pavement thickness, density, resilient or dynamic modulus, tensile strength, Marshall or Hveem stability, or for extraction testing, to determine asphalt content, asphalt properties and mix gradation.
